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© 2015 OJ Electronics A/S
Type OTN2 / OTD2
with room or floor sensor
English .......................1
Deutsch .....................4
Русский ...................7
Polski .......................10
Українська ..............13
57097C 09/15 (JRK)
© 2015 OJ Electronics A/S
USER MANUAL
Contents
Introduction
Microline
®
electronic thermostat for installation in standard wall
box. The thermostat allows the required temperature to be set
within the range 0-40°C. An LED indicates whether heating is
active. The thermostat is suitable for ELKO and NORWESCO
systems S-16, RS-16 and UNI-10. An extra frame is supplied with
the unit.
Microline product programme
OTN2-1991 with floor sensor
OTN2-1999 with built-in room sensor
OTD2-1999 with built-in room sensor and external limitation sensor
CE marking
Applied standards
EN 61000-6-3, EN 61000-6-2, EN 60 730-1 and EN 60730-2-9.
The product may only be used if the complete installation complies
with current directives.
The thermostat must only be installed by an authorised electrician.
If the product has been damaged in any way, e.g. during transport,
it must be inspected and checked by authorised personnel before
being connected to the power supply.
The product carries a manufacturer’s warranty if installed in ac-
cordance with these instructions and applicable regulations.
Type OTN2 / OTD2 with room or floor sensor English
Technical data
Purpose of control .............Electronic room thermostat for regulating
electric underfloor heating
Voltage .......................................................... 230 V AC ±15% 50 Hz
Max. pre-fuse ............................................................................ 16 A
Built-in circuit breaker ...................................................2-pole, 16 A
Output relay ........................................... Make contact - SPST - NO
Output ................................................................Max. 16 A / 3600 W
Control principle .................................................................. ON/OFF
Temperature range .............................................................+0/+40°C
Dierence/hysteresis ................................................................ 0.4°C
Economy temperature ........................................... 5°C (2-8°C OTD2)
- control voltage signal ....................................................... 230 V AC
Frost protection temperature ........................................5°C absolute
- control voltage signal via rectifier diode ......................... 230 V AC
Range limits .......................................................................min./max.
Sensor fault protection ............................................................. -20°C
Ambient operating temperature ............................................0/+30°C
Method of mounting ....................should be mounted independently
in a wall box in the fixed installation
Type of action..... ......................................................................... 1.B.
Control pollution degree.... .............................................................. 2
Software class..... ............................................................................ A
Overvoltage category ......................................................................III
Rated impulse voltage..... ............................................................ 4kV
Ball pressure temperature..... .................................................. 125°C
Dimensions ..................................................... H/84, W/84, D/40 mm
Enclosure rating ........................................................................ IP 21
The thermostat is maintenance free.
Introduction ................................................................................ 1
Microline product programme ................................................. 1
CE marking................................................................................. 1
Technical data ............................................................................ 1
Sensor installation ..................................................................... 2
Installation of thermostat ........................................................ 2
Environment protection/recycling ........................................... 3
Product disposal ........................................................................ 3
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© 2015 OJ Electronics A/S © 2015 OJ Electronics A/S
Type OTN2 / OTD2 with room or floor sensor English
Classification
Protection against electric shock must be guaranteed by ap-
propriate mounting. The requirements of Class II are fulfilled after
appropriate mounting (reinforced insulation). The thermostat must
be connected as follows:
Term. 1: Live (L1) 230 V ±15%, 50/60 Hz
Term. 2: Neutral (L2)
Term. 3–4: Max. load 16 A, 3600 W
Pollution class: 2
Pollution class 2, representative of air circulation in typical homes.
Overvoltage category: III
Pulse voltage 4 kV to IEC 60664-1.
Sensor installation
Floor sensor:
The floor sensor should be installed in standard conduit embedded
in the floor. The conduit should be sealed and positioned as close
to the floor surface as possible.
Room sensor:
The room sensor should be installed in a standard wall box or
mounted direct on the wall. Sensor cables can be extended up
to a maximum of 10 m in length using power cable. Two wires in
a multi-wire cable must, however, not be used if the cable is also
used to supply power to heating cables. The best result is achieved
if a separate cable, installed in a separate conduit, is used for the
sensor.
Installation of thermostat
Built-in or external room sensor
The thermostat or external room sensor should be mounted on a
wall in such a way as to allow free air circulation around it. It must
also be positioned so as to prevent it from being aected by direct
heat sources (e.g. the sun), draughts from doors and windows, or
outside temperature (i.e. do not mount on outer walls). MICROLINE
has a built in fault circuit which switches the heating o if the sen-
sor is disconnected or short-circuited.
Thermostat installation
- Open cover.
- Unscrew cover and remove.
- Connect wires from rear as shown in wiring diagram.
- Mount thermostat in wall box - fit frame and cover.
Temperature setting
Interrupter
LED
Increase temperature
Programming button (P)
Decrease temperature
MICROLINE has a temperature setting range of 0-40°C.
Set the wanted temperature with the arrow buttons, the set tem-
perature shows in the display. The thermostat will calculate the best
way to control the heating system in order to achieve the desired
temperature. If necessary, fine adjustment can be performed after 1
or 2 days.
Night setback
The night setback/economy temperature function is activated via a
230 V signal from an external timer connected to terminal S.
The function is factory set to 5°C (2-8° OTD2). The LED lights green
when the economy signal is active and red when heating is active.
Frost protection
If the signal is connected via a rectifier diode, the thermostat will
maintain a floor/room temperature of 5°C.
Settings
To set parameter values, press and hold the programming button
for 3 seconds. SCA Hi 40 will be shown on the display. Firstly,
SCA will be displayed for 1 second, followed by Hi, and finally 40.
The required value can then be set using the arrow buttons. To
access the next parameter, press the programming button again. If
no buttons are pressed for 30 seconds, the program returns to the
initial display.
Parameter Shown on display Factory setting
OJ standard
OTD2 -1999 OTN2 -1991 OTN2 -1999
Max. temperature
SCA Hi 40
40°C (0-40°C) • • •
Min. temperature
SCA Lo 0
0°C (0-40°C) • • •
Max. limit temperature FLOOR
Li Hi 28
28°C (15-55°C) •
Min. limit temperature FLOOR
Li Lo 15
15°C (5-30°C) •
Measure floor temperature
FLo 24.5
•
Measured room temperature
ro 21.5
•
Application
APp A : Room sensor *1
• •
F : Floor sensor *2
• •
AF : Room with Limit sensor *2
•
C : Controller
•
Oset
oFF
0 0 (+/- 3°C) • • •
Night setback/ECO
nSb
5 5°C (2-8°C) •
*1 : Only available if floor sensor is not installed
*2 : Only available if floor sensor is installed
If Controller (C) is selected under Application, the floor and room sensors are disconnected and heating is controlled on a scale of 0-10,
corresponding to 0-100% activated
Error codes
E1 - Sensor error. Sensor is short-circuited or disconnected. The LED is flashing red once.
E2 - Limit error. The temperature on the floor has surpassed max. limit temperature. The thermostat switch o the heating and the LED is
flashing red twice.
E5 - Overheating. The temperature is too high in the termostat and switch o the heating. The LED is flashing 5 times.
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© 2015 OJ Electronics A/S © 2015 OJ Electronics A/S
Environment protection/recycling
Help protect the environment by disposing of the packaging and
redundant products in a responsible manner.
Product disposal
Products marked with this symbol must not be dis-
posed of together with household refuse but must be
delivered to a waste collection centre in accordance
with current local regulations.
OJ Electronics A/S
Stenager 13B · DK-6400 Sønderborg
Tel.: +45 73 12 13 14 · Fax +45 73 12 13 13
[email protected] · www.ojelectronics.com
Type OTN2 / OTD2 with room or floor sensor English
-10
0
10
20
30
64000
38000
23300
14800
9700
Valor (ohmios)
Sensor
Temp. (°C)
BR929A08-E
Sensor table Night setback Frost protection
BR929A08-E
BR949A06-A
BR949A07-A
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© 2015 OJ Electronics A/S · ® The OJ trademark is a registred trademark belonging to OJ Electronics A/S
OJ ELECTRONICS A/S
Stenager 13B · DK-6400 Sønderborg
Tel.: +45 73 12 13 14 · Fax +45 73 12 13 13
[email protected] · www.ojelectronics.com
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